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424163ea DJ |
1 | /* Target description support for GDB. |
2 | ||
32d0add0 | 3 | Copyright (C) 2006-2015 Free Software Foundation, Inc. |
424163ea DJ |
4 | |
5 | Contributed by CodeSourcery. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
424163ea DJ |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
424163ea DJ |
21 | |
22 | #include "defs.h" | |
23 | #include "arch-utils.h" | |
23181151 | 24 | #include "gdbcmd.h" |
123dc839 DJ |
25 | #include "gdbtypes.h" |
26 | #include "reggroups.h" | |
424163ea DJ |
27 | #include "target.h" |
28 | #include "target-descriptions.h" | |
29709017 | 29 | #include "vec.h" |
123dc839 | 30 | #include "xml-support.h" |
23181151 | 31 | #include "xml-tdesc.h" |
c3f08eb7 | 32 | #include "osabi.h" |
424163ea | 33 | |
123dc839 DJ |
34 | #include "gdb_obstack.h" |
35 | #include "hashtab.h" | |
6ecd4729 | 36 | #include "inferior.h" |
424163ea DJ |
37 | |
38 | /* Types. */ | |
39 | ||
29709017 DJ |
40 | typedef struct property |
41 | { | |
23181151 DJ |
42 | char *key; |
43 | char *value; | |
29709017 DJ |
44 | } property_s; |
45 | DEF_VEC_O(property_s); | |
46 | ||
123dc839 DJ |
47 | /* An individual register from a target description. */ |
48 | ||
49 | typedef struct tdesc_reg | |
50 | { | |
51 | /* The name of this register. In standard features, it may be | |
52 | recognized by the architecture support code, or it may be purely | |
53 | for the user. */ | |
54 | char *name; | |
55 | ||
56 | /* The register number used by this target to refer to this | |
57 | register. This is used for remote p/P packets and to determine | |
58 | the ordering of registers in the remote g/G packets. */ | |
59 | long target_regnum; | |
60 | ||
61 | /* If this flag is set, GDB should save and restore this register | |
62 | around calls to an inferior function. */ | |
63 | int save_restore; | |
64 | ||
65 | /* The name of the register group containing this register, or NULL | |
66 | if the group should be automatically determined from the | |
67 | register's type. If this is "general", "float", or "vector", the | |
68 | corresponding "info" command should display this register's | |
69 | value. It can be an arbitrary string, but should be limited to | |
70 | alphanumeric characters and internal hyphens. Currently other | |
71 | strings are ignored (treated as NULL). */ | |
72 | char *group; | |
73 | ||
74 | /* The size of the register, in bits. */ | |
75 | int bitsize; | |
76 | ||
77 | /* The type of the register. This string corresponds to either | |
78 | a named type from the target description or a predefined | |
79 | type from GDB. */ | |
80 | char *type; | |
81 | ||
82 | /* The target-described type corresponding to TYPE, if found. */ | |
ad068eab | 83 | struct tdesc_type *tdesc_type; |
123dc839 DJ |
84 | } *tdesc_reg_p; |
85 | DEF_VEC_P(tdesc_reg_p); | |
86 | ||
87 | /* A named type from a target description. */ | |
ad068eab UW |
88 | |
89 | typedef struct tdesc_type_field | |
90 | { | |
91 | char *name; | |
92 | struct tdesc_type *type; | |
f5dff777 | 93 | int start, end; |
ad068eab UW |
94 | } tdesc_type_field; |
95 | DEF_VEC_O(tdesc_type_field); | |
96 | ||
f5dff777 DJ |
97 | typedef struct tdesc_type_flag |
98 | { | |
99 | char *name; | |
100 | int start; | |
101 | } tdesc_type_flag; | |
102 | DEF_VEC_O(tdesc_type_flag); | |
103 | ||
52059ffd TT |
104 | enum tdesc_type_kind |
105 | { | |
106 | /* Predefined types. */ | |
107 | TDESC_TYPE_INT8, | |
108 | TDESC_TYPE_INT16, | |
109 | TDESC_TYPE_INT32, | |
110 | TDESC_TYPE_INT64, | |
111 | TDESC_TYPE_INT128, | |
112 | TDESC_TYPE_UINT8, | |
113 | TDESC_TYPE_UINT16, | |
114 | TDESC_TYPE_UINT32, | |
115 | TDESC_TYPE_UINT64, | |
116 | TDESC_TYPE_UINT128, | |
117 | TDESC_TYPE_CODE_PTR, | |
118 | TDESC_TYPE_DATA_PTR, | |
119 | TDESC_TYPE_IEEE_SINGLE, | |
120 | TDESC_TYPE_IEEE_DOUBLE, | |
121 | TDESC_TYPE_ARM_FPA_EXT, | |
122 | TDESC_TYPE_I387_EXT, | |
123 | ||
124 | /* Types defined by a target feature. */ | |
125 | TDESC_TYPE_VECTOR, | |
126 | TDESC_TYPE_STRUCT, | |
127 | TDESC_TYPE_UNION, | |
128 | TDESC_TYPE_FLAGS | |
129 | }; | |
130 | ||
ad068eab UW |
131 | typedef struct tdesc_type |
132 | { | |
133 | /* The name of this type. */ | |
134 | char *name; | |
135 | ||
136 | /* Identify the kind of this type. */ | |
52059ffd | 137 | enum tdesc_type_kind kind; |
ad068eab UW |
138 | |
139 | /* Kind-specific data. */ | |
140 | union | |
141 | { | |
142 | /* Vector type. */ | |
143 | struct | |
144 | { | |
145 | struct tdesc_type *type; | |
146 | int count; | |
147 | } v; | |
148 | ||
f5dff777 | 149 | /* Struct or union type. */ |
ad068eab UW |
150 | struct |
151 | { | |
152 | VEC(tdesc_type_field) *fields; | |
f5dff777 | 153 | LONGEST size; |
ad068eab | 154 | } u; |
f5dff777 DJ |
155 | |
156 | /* Flags type. */ | |
157 | struct | |
158 | { | |
159 | VEC(tdesc_type_flag) *flags; | |
160 | LONGEST size; | |
161 | } f; | |
ad068eab UW |
162 | } u; |
163 | } *tdesc_type_p; | |
164 | DEF_VEC_P(tdesc_type_p); | |
123dc839 DJ |
165 | |
166 | /* A feature from a target description. Each feature is a collection | |
167 | of other elements, e.g. registers and types. */ | |
168 | ||
169 | typedef struct tdesc_feature | |
170 | { | |
171 | /* The name of this feature. It may be recognized by the architecture | |
172 | support code. */ | |
173 | char *name; | |
174 | ||
175 | /* The registers associated with this feature. */ | |
176 | VEC(tdesc_reg_p) *registers; | |
177 | ||
178 | /* The types associated with this feature. */ | |
ad068eab | 179 | VEC(tdesc_type_p) *types; |
123dc839 DJ |
180 | } *tdesc_feature_p; |
181 | DEF_VEC_P(tdesc_feature_p); | |
182 | ||
e35359c5 UW |
183 | /* A compatible architecture from a target description. */ |
184 | typedef const struct bfd_arch_info *arch_p; | |
185 | DEF_VEC_P(arch_p); | |
186 | ||
123dc839 DJ |
187 | /* A target description. */ |
188 | ||
424163ea DJ |
189 | struct target_desc |
190 | { | |
23181151 DJ |
191 | /* The architecture reported by the target, if any. */ |
192 | const struct bfd_arch_info *arch; | |
193 | ||
08d16641 PA |
194 | /* The osabi reported by the target, if any; GDB_OSABI_UNKNOWN |
195 | otherwise. */ | |
196 | enum gdb_osabi osabi; | |
197 | ||
e35359c5 UW |
198 | /* The list of compatible architectures reported by the target. */ |
199 | VEC(arch_p) *compatible; | |
200 | ||
29709017 DJ |
201 | /* Any architecture-specific properties specified by the target. */ |
202 | VEC(property_s) *properties; | |
123dc839 DJ |
203 | |
204 | /* The features associated with this target. */ | |
205 | VEC(tdesc_feature_p) *features; | |
206 | }; | |
207 | ||
208 | /* Per-architecture data associated with a target description. The | |
209 | target description may be shared by multiple architectures, but | |
210 | this data is private to one gdbarch. */ | |
211 | ||
ad068eab UW |
212 | typedef struct tdesc_arch_reg |
213 | { | |
214 | struct tdesc_reg *reg; | |
215 | struct type *type; | |
216 | } tdesc_arch_reg; | |
217 | DEF_VEC_O(tdesc_arch_reg); | |
218 | ||
123dc839 DJ |
219 | struct tdesc_arch_data |
220 | { | |
ad068eab | 221 | /* A list of register/type pairs, indexed by GDB's internal register number. |
123dc839 DJ |
222 | During initialization of the gdbarch this list is used to store |
223 | registers which the architecture assigns a fixed register number. | |
224 | Registers which are NULL in this array, or off the end, are | |
225 | treated as zero-sized and nameless (i.e. placeholders in the | |
226 | numbering). */ | |
ad068eab | 227 | VEC(tdesc_arch_reg) *arch_regs; |
123dc839 DJ |
228 | |
229 | /* Functions which report the register name, type, and reggroups for | |
230 | pseudo-registers. */ | |
231 | gdbarch_register_name_ftype *pseudo_register_name; | |
232 | gdbarch_register_type_ftype *pseudo_register_type; | |
233 | gdbarch_register_reggroup_p_ftype *pseudo_register_reggroup_p; | |
424163ea DJ |
234 | }; |
235 | ||
6ecd4729 PA |
236 | /* Info about an inferior's target description. There's one of these |
237 | for each inferior. */ | |
424163ea | 238 | |
6ecd4729 PA |
239 | struct target_desc_info |
240 | { | |
241 | /* A flag indicating that a description has already been fetched | |
242 | from the target, so it should not be queried again. */ | |
243 | ||
244 | int fetched; | |
424163ea | 245 | |
6ecd4729 PA |
246 | /* The description fetched from the target, or NULL if the target |
247 | did not supply any description. Only valid when | |
248 | target_desc_fetched is set. Only the description initialization | |
249 | code should access this; normally, the description should be | |
250 | accessed through the gdbarch object. */ | |
424163ea | 251 | |
6ecd4729 | 252 | const struct target_desc *tdesc; |
424163ea | 253 | |
6ecd4729 PA |
254 | /* The filename to read a target description from, as set by "set |
255 | tdesc filename ..." */ | |
424163ea | 256 | |
6ecd4729 PA |
257 | char *filename; |
258 | }; | |
23181151 | 259 | |
6ecd4729 PA |
260 | /* Get the inferior INF's target description info, allocating one on |
261 | the stop if necessary. */ | |
23181151 | 262 | |
6ecd4729 PA |
263 | static struct target_desc_info * |
264 | get_tdesc_info (struct inferior *inf) | |
265 | { | |
266 | if (inf->tdesc_info == NULL) | |
267 | inf->tdesc_info = XCNEW (struct target_desc_info); | |
268 | return inf->tdesc_info; | |
269 | } | |
23181151 | 270 | |
123dc839 DJ |
271 | /* A handle for architecture-specific data associated with the |
272 | target description (see struct tdesc_arch_data). */ | |
273 | ||
274 | static struct gdbarch_data *tdesc_data; | |
275 | ||
6ecd4729 PA |
276 | /* See target-descriptions.h. */ |
277 | ||
278 | int | |
279 | target_desc_info_from_user_p (struct target_desc_info *info) | |
280 | { | |
281 | return info != NULL && info->filename != NULL; | |
282 | } | |
283 | ||
284 | /* See target-descriptions.h. */ | |
285 | ||
286 | void | |
287 | copy_inferior_target_desc_info (struct inferior *destinf, struct inferior *srcinf) | |
288 | { | |
289 | struct target_desc_info *src = get_tdesc_info (srcinf); | |
290 | struct target_desc_info *dest = get_tdesc_info (destinf); | |
291 | ||
292 | dest->fetched = src->fetched; | |
293 | dest->tdesc = src->tdesc; | |
294 | dest->filename = src->filename != NULL ? xstrdup (src->filename) : NULL; | |
295 | } | |
296 | ||
297 | /* See target-descriptions.h. */ | |
298 | ||
299 | void | |
300 | target_desc_info_free (struct target_desc_info *tdesc_info) | |
301 | { | |
302 | if (tdesc_info != NULL) | |
303 | { | |
304 | xfree (tdesc_info->filename); | |
305 | xfree (tdesc_info); | |
306 | } | |
307 | } | |
308 | ||
309 | /* Convenience helper macros. */ | |
310 | ||
311 | #define target_desc_fetched \ | |
312 | get_tdesc_info (current_inferior ())->fetched | |
313 | #define current_target_desc \ | |
314 | get_tdesc_info (current_inferior ())->tdesc | |
315 | #define target_description_filename \ | |
316 | get_tdesc_info (current_inferior ())->filename | |
317 | ||
318 | /* The string manipulated by the "set tdesc filename ..." command. */ | |
319 | ||
320 | static char *tdesc_filename_cmd_string; | |
321 | ||
424163ea DJ |
322 | /* Fetch the current target's description, and switch the current |
323 | architecture to one which incorporates that description. */ | |
324 | ||
325 | void | |
326 | target_find_description (void) | |
327 | { | |
328 | /* If we've already fetched a description from the target, don't do | |
329 | it again. This allows a target to fetch the description early, | |
330 | during its to_open or to_create_inferior, if it needs extra | |
331 | information about the target to initialize. */ | |
332 | if (target_desc_fetched) | |
333 | return; | |
334 | ||
335 | /* The current architecture should not have any target description | |
336 | specified. It should have been cleared, e.g. when we | |
337 | disconnected from the previous target. */ | |
f5656ead | 338 | gdb_assert (gdbarch_target_desc (target_gdbarch ()) == NULL); |
424163ea | 339 | |
23181151 DJ |
340 | /* First try to fetch an XML description from the user-specified |
341 | file. */ | |
342 | current_target_desc = NULL; | |
343 | if (target_description_filename != NULL | |
344 | && *target_description_filename != '\0') | |
345 | current_target_desc | |
346 | = file_read_description_xml (target_description_filename); | |
347 | ||
348 | /* Next try to read the description from the current target using | |
349 | target objects. */ | |
350 | if (current_target_desc == NULL) | |
351 | current_target_desc = target_read_description_xml (¤t_target); | |
352 | ||
353 | /* If that failed try a target-specific hook. */ | |
354 | if (current_target_desc == NULL) | |
355 | current_target_desc = target_read_description (¤t_target); | |
424163ea DJ |
356 | |
357 | /* If a non-NULL description was returned, then update the current | |
358 | architecture. */ | |
359 | if (current_target_desc) | |
360 | { | |
361 | struct gdbarch_info info; | |
362 | ||
363 | gdbarch_info_init (&info); | |
364 | info.target_desc = current_target_desc; | |
365 | if (!gdbarch_update_p (info)) | |
123dc839 DJ |
366 | warning (_("Architecture rejected target-supplied description")); |
367 | else | |
368 | { | |
369 | struct tdesc_arch_data *data; | |
370 | ||
f5656ead | 371 | data = gdbarch_data (target_gdbarch (), tdesc_data); |
123dc839 | 372 | if (tdesc_has_registers (current_target_desc) |
ad068eab | 373 | && data->arch_regs == NULL) |
123dc839 DJ |
374 | warning (_("Target-supplied registers are not supported " |
375 | "by the current architecture")); | |
376 | } | |
424163ea DJ |
377 | } |
378 | ||
379 | /* Now that we know this description is usable, record that we | |
380 | fetched it. */ | |
381 | target_desc_fetched = 1; | |
382 | } | |
383 | ||
384 | /* Discard any description fetched from the current target, and switch | |
385 | the current architecture to one with no target description. */ | |
386 | ||
387 | void | |
388 | target_clear_description (void) | |
389 | { | |
390 | struct gdbarch_info info; | |
391 | ||
392 | if (!target_desc_fetched) | |
393 | return; | |
394 | ||
395 | target_desc_fetched = 0; | |
396 | current_target_desc = NULL; | |
397 | ||
398 | gdbarch_info_init (&info); | |
399 | if (!gdbarch_update_p (info)) | |
400 | internal_error (__FILE__, __LINE__, | |
401 | _("Could not remove target-supplied description")); | |
402 | } | |
403 | ||
404 | /* Return the global current target description. This should only be | |
405 | used by gdbarch initialization code; most access should be through | |
406 | an existing gdbarch. */ | |
407 | ||
408 | const struct target_desc * | |
409 | target_current_description (void) | |
410 | { | |
411 | if (target_desc_fetched) | |
412 | return current_target_desc; | |
413 | ||
414 | return NULL; | |
415 | } | |
e35359c5 UW |
416 | |
417 | /* Return non-zero if this target description is compatible | |
418 | with the given BFD architecture. */ | |
419 | ||
420 | int | |
421 | tdesc_compatible_p (const struct target_desc *target_desc, | |
422 | const struct bfd_arch_info *arch) | |
423 | { | |
424 | const struct bfd_arch_info *compat; | |
425 | int ix; | |
426 | ||
427 | for (ix = 0; VEC_iterate (arch_p, target_desc->compatible, ix, compat); | |
428 | ix++) | |
429 | { | |
430 | if (compat == arch | |
431 | || arch->compatible (arch, compat) | |
432 | || compat->compatible (compat, arch)) | |
433 | return 1; | |
434 | } | |
435 | ||
436 | return 0; | |
437 | } | |
23181151 DJ |
438 | \f |
439 | ||
123dc839 | 440 | /* Direct accessors for target descriptions. */ |
424163ea | 441 | |
29709017 DJ |
442 | /* Return the string value of a property named KEY, or NULL if the |
443 | property was not specified. */ | |
444 | ||
445 | const char * | |
446 | tdesc_property (const struct target_desc *target_desc, const char *key) | |
447 | { | |
448 | struct property *prop; | |
449 | int ix; | |
450 | ||
451 | for (ix = 0; VEC_iterate (property_s, target_desc->properties, ix, prop); | |
452 | ix++) | |
453 | if (strcmp (prop->key, key) == 0) | |
454 | return prop->value; | |
455 | ||
456 | return NULL; | |
457 | } | |
458 | ||
23181151 DJ |
459 | /* Return the BFD architecture associated with this target |
460 | description, or NULL if no architecture was specified. */ | |
461 | ||
462 | const struct bfd_arch_info * | |
463 | tdesc_architecture (const struct target_desc *target_desc) | |
464 | { | |
465 | return target_desc->arch; | |
466 | } | |
08d16641 PA |
467 | |
468 | /* Return the OSABI associated with this target description, or | |
469 | GDB_OSABI_UNKNOWN if no osabi was specified. */ | |
470 | ||
471 | enum gdb_osabi | |
472 | tdesc_osabi (const struct target_desc *target_desc) | |
473 | { | |
474 | return target_desc->osabi; | |
475 | } | |
476 | ||
23181151 DJ |
477 | \f |
478 | ||
123dc839 DJ |
479 | /* Return 1 if this target description includes any registers. */ |
480 | ||
481 | int | |
482 | tdesc_has_registers (const struct target_desc *target_desc) | |
483 | { | |
484 | int ix; | |
485 | struct tdesc_feature *feature; | |
486 | ||
487 | if (target_desc == NULL) | |
488 | return 0; | |
489 | ||
490 | for (ix = 0; | |
491 | VEC_iterate (tdesc_feature_p, target_desc->features, ix, feature); | |
492 | ix++) | |
493 | if (! VEC_empty (tdesc_reg_p, feature->registers)) | |
494 | return 1; | |
495 | ||
496 | return 0; | |
497 | } | |
498 | ||
499 | /* Return the feature with the given name, if present, or NULL if | |
500 | the named feature is not found. */ | |
501 | ||
502 | const struct tdesc_feature * | |
503 | tdesc_find_feature (const struct target_desc *target_desc, | |
504 | const char *name) | |
505 | { | |
506 | int ix; | |
507 | struct tdesc_feature *feature; | |
508 | ||
509 | for (ix = 0; | |
510 | VEC_iterate (tdesc_feature_p, target_desc->features, ix, feature); | |
511 | ix++) | |
512 | if (strcmp (feature->name, name) == 0) | |
513 | return feature; | |
514 | ||
515 | return NULL; | |
516 | } | |
517 | ||
518 | /* Return the name of FEATURE. */ | |
519 | ||
520 | const char * | |
521 | tdesc_feature_name (const struct tdesc_feature *feature) | |
522 | { | |
523 | return feature->name; | |
524 | } | |
525 | ||
ad068eab UW |
526 | /* Predefined types. */ |
527 | static struct tdesc_type tdesc_predefined_types[] = | |
81adfced | 528 | { |
ad068eab UW |
529 | { "int8", TDESC_TYPE_INT8 }, |
530 | { "int16", TDESC_TYPE_INT16 }, | |
531 | { "int32", TDESC_TYPE_INT32 }, | |
532 | { "int64", TDESC_TYPE_INT64 }, | |
533 | { "int128", TDESC_TYPE_INT128 }, | |
534 | { "uint8", TDESC_TYPE_UINT8 }, | |
535 | { "uint16", TDESC_TYPE_UINT16 }, | |
536 | { "uint32", TDESC_TYPE_UINT32 }, | |
537 | { "uint64", TDESC_TYPE_UINT64 }, | |
538 | { "uint128", TDESC_TYPE_UINT128 }, | |
539 | { "code_ptr", TDESC_TYPE_CODE_PTR }, | |
540 | { "data_ptr", TDESC_TYPE_DATA_PTR }, | |
541 | { "ieee_single", TDESC_TYPE_IEEE_SINGLE }, | |
542 | { "ieee_double", TDESC_TYPE_IEEE_DOUBLE }, | |
9fd3625f | 543 | { "arm_fpa_ext", TDESC_TYPE_ARM_FPA_EXT }, |
a6f5ef51 | 544 | { "i387_ext", TDESC_TYPE_I387_EXT } |
ad068eab | 545 | }; |
81adfced | 546 | |
123dc839 DJ |
547 | /* Return the type associated with ID in the context of FEATURE, or |
548 | NULL if none. */ | |
549 | ||
ad068eab | 550 | struct tdesc_type * |
123dc839 DJ |
551 | tdesc_named_type (const struct tdesc_feature *feature, const char *id) |
552 | { | |
553 | int ix; | |
ad068eab | 554 | struct tdesc_type *type; |
123dc839 DJ |
555 | |
556 | /* First try target-defined types. */ | |
ad068eab UW |
557 | for (ix = 0; VEC_iterate (tdesc_type_p, feature->types, ix, type); ix++) |
558 | if (strcmp (type->name, id) == 0) | |
559 | return type; | |
123dc839 | 560 | |
81adfced DJ |
561 | /* Next try the predefined types. */ |
562 | for (ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++) | |
563 | if (strcmp (tdesc_predefined_types[ix].name, id) == 0) | |
ad068eab | 564 | return &tdesc_predefined_types[ix]; |
123dc839 DJ |
565 | |
566 | return NULL; | |
567 | } | |
ad068eab | 568 | |
9fd3625f L |
569 | /* Lookup type associated with ID. */ |
570 | ||
571 | struct type * | |
572 | tdesc_find_type (struct gdbarch *gdbarch, const char *id) | |
573 | { | |
574 | struct tdesc_arch_reg *reg; | |
575 | struct tdesc_arch_data *data; | |
576 | int i, num_regs; | |
577 | ||
578 | data = gdbarch_data (gdbarch, tdesc_data); | |
579 | num_regs = VEC_length (tdesc_arch_reg, data->arch_regs); | |
580 | for (i = 0; i < num_regs; i++) | |
581 | { | |
582 | reg = VEC_index (tdesc_arch_reg, data->arch_regs, i); | |
583 | if (reg->reg | |
584 | && reg->reg->tdesc_type | |
585 | && reg->type | |
586 | && strcmp (id, reg->reg->tdesc_type->name) == 0) | |
587 | return reg->type; | |
588 | } | |
589 | ||
590 | return NULL; | |
591 | } | |
592 | ||
ad068eab UW |
593 | /* Construct, if necessary, and return the GDB type implementing target |
594 | type TDESC_TYPE for architecture GDBARCH. */ | |
595 | ||
596 | static struct type * | |
597 | tdesc_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *tdesc_type) | |
598 | { | |
9fd3625f L |
599 | struct type *type; |
600 | ||
ad068eab UW |
601 | switch (tdesc_type->kind) |
602 | { | |
603 | /* Predefined types. */ | |
604 | case TDESC_TYPE_INT8: | |
df4df182 | 605 | return builtin_type (gdbarch)->builtin_int8; |
ad068eab UW |
606 | |
607 | case TDESC_TYPE_INT16: | |
df4df182 | 608 | return builtin_type (gdbarch)->builtin_int16; |
ad068eab UW |
609 | |
610 | case TDESC_TYPE_INT32: | |
df4df182 | 611 | return builtin_type (gdbarch)->builtin_int32; |
ad068eab UW |
612 | |
613 | case TDESC_TYPE_INT64: | |
df4df182 | 614 | return builtin_type (gdbarch)->builtin_int64; |
ad068eab UW |
615 | |
616 | case TDESC_TYPE_INT128: | |
df4df182 | 617 | return builtin_type (gdbarch)->builtin_int128; |
ad068eab UW |
618 | |
619 | case TDESC_TYPE_UINT8: | |
df4df182 | 620 | return builtin_type (gdbarch)->builtin_uint8; |
ad068eab UW |
621 | |
622 | case TDESC_TYPE_UINT16: | |
df4df182 | 623 | return builtin_type (gdbarch)->builtin_uint16; |
ad068eab UW |
624 | |
625 | case TDESC_TYPE_UINT32: | |
df4df182 | 626 | return builtin_type (gdbarch)->builtin_uint32; |
ad068eab UW |
627 | |
628 | case TDESC_TYPE_UINT64: | |
df4df182 | 629 | return builtin_type (gdbarch)->builtin_uint64; |
ad068eab UW |
630 | |
631 | case TDESC_TYPE_UINT128: | |
df4df182 | 632 | return builtin_type (gdbarch)->builtin_uint128; |
ad068eab UW |
633 | |
634 | case TDESC_TYPE_CODE_PTR: | |
635 | return builtin_type (gdbarch)->builtin_func_ptr; | |
636 | ||
637 | case TDESC_TYPE_DATA_PTR: | |
638 | return builtin_type (gdbarch)->builtin_data_ptr; | |
639 | ||
9fd3625f L |
640 | default: |
641 | break; | |
642 | } | |
643 | ||
644 | type = tdesc_find_type (gdbarch, tdesc_type->name); | |
645 | if (type) | |
646 | return type; | |
647 | ||
648 | switch (tdesc_type->kind) | |
649 | { | |
ad068eab | 650 | case TDESC_TYPE_IEEE_SINGLE: |
e9bb382b | 651 | return arch_float_type (gdbarch, -1, "builtin_type_ieee_single", |
27067745 | 652 | floatformats_ieee_single); |
ad068eab UW |
653 | |
654 | case TDESC_TYPE_IEEE_DOUBLE: | |
e9bb382b | 655 | return arch_float_type (gdbarch, -1, "builtin_type_ieee_double", |
27067745 | 656 | floatformats_ieee_double); |
ad068eab UW |
657 | |
658 | case TDESC_TYPE_ARM_FPA_EXT: | |
e9bb382b | 659 | return arch_float_type (gdbarch, -1, "builtin_type_arm_ext", |
27067745 | 660 | floatformats_arm_ext); |
ad068eab | 661 | |
9fd3625f L |
662 | case TDESC_TYPE_I387_EXT: |
663 | return arch_float_type (gdbarch, -1, "builtin_type_i387_ext", | |
664 | floatformats_i387_ext); | |
665 | ||
ad068eab UW |
666 | /* Types defined by a target feature. */ |
667 | case TDESC_TYPE_VECTOR: | |
668 | { | |
669 | struct type *type, *field_type; | |
670 | ||
671 | field_type = tdesc_gdb_type (gdbarch, tdesc_type->u.v.type); | |
672 | type = init_vector_type (field_type, tdesc_type->u.v.count); | |
673 | TYPE_NAME (type) = xstrdup (tdesc_type->name); | |
674 | ||
675 | return type; | |
676 | } | |
677 | ||
f5dff777 DJ |
678 | case TDESC_TYPE_STRUCT: |
679 | { | |
680 | struct type *type, *field_type; | |
681 | struct tdesc_type_field *f; | |
682 | int ix; | |
683 | ||
684 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
685 | TYPE_NAME (type) = xstrdup (tdesc_type->name); | |
686 | TYPE_TAG_NAME (type) = TYPE_NAME (type); | |
687 | ||
688 | for (ix = 0; | |
689 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); | |
690 | ix++) | |
691 | { | |
692 | if (f->type == NULL) | |
693 | { | |
694 | /* Bitfield. */ | |
695 | struct field *fld; | |
696 | struct type *field_type; | |
697 | int bitsize, total_size; | |
698 | ||
699 | /* This invariant should be preserved while creating | |
700 | types. */ | |
701 | gdb_assert (tdesc_type->u.u.size != 0); | |
702 | if (tdesc_type->u.u.size > 4) | |
703 | field_type = builtin_type (gdbarch)->builtin_uint64; | |
704 | else | |
705 | field_type = builtin_type (gdbarch)->builtin_uint32; | |
706 | ||
707 | fld = append_composite_type_field_raw (type, xstrdup (f->name), | |
708 | field_type); | |
709 | ||
710 | /* For little-endian, BITPOS counts from the LSB of | |
711 | the structure and marks the LSB of the field. For | |
712 | big-endian, BITPOS counts from the MSB of the | |
713 | structure and marks the MSB of the field. Either | |
714 | way, it is the number of bits to the "left" of the | |
715 | field. To calculate this in big-endian, we need | |
716 | the total size of the structure. */ | |
717 | bitsize = f->end - f->start + 1; | |
718 | total_size = tdesc_type->u.u.size * TARGET_CHAR_BIT; | |
719 | if (gdbarch_bits_big_endian (gdbarch)) | |
f41f5e61 | 720 | SET_FIELD_BITPOS (fld[0], total_size - f->start - bitsize); |
f5dff777 | 721 | else |
f41f5e61 | 722 | SET_FIELD_BITPOS (fld[0], f->start); |
f5dff777 DJ |
723 | FIELD_BITSIZE (fld[0]) = bitsize; |
724 | } | |
725 | else | |
726 | { | |
727 | field_type = tdesc_gdb_type (gdbarch, f->type); | |
728 | append_composite_type_field (type, xstrdup (f->name), | |
729 | field_type); | |
730 | } | |
731 | } | |
732 | ||
733 | if (tdesc_type->u.u.size != 0) | |
734 | TYPE_LENGTH (type) = tdesc_type->u.u.size; | |
735 | return type; | |
736 | } | |
737 | ||
ad068eab UW |
738 | case TDESC_TYPE_UNION: |
739 | { | |
740 | struct type *type, *field_type; | |
741 | struct tdesc_type_field *f; | |
742 | int ix; | |
743 | ||
e9bb382b | 744 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); |
ad068eab UW |
745 | TYPE_NAME (type) = xstrdup (tdesc_type->name); |
746 | ||
747 | for (ix = 0; | |
748 | VEC_iterate (tdesc_type_field, tdesc_type->u.u.fields, ix, f); | |
749 | ix++) | |
750 | { | |
751 | field_type = tdesc_gdb_type (gdbarch, f->type); | |
752 | append_composite_type_field (type, xstrdup (f->name), field_type); | |
753 | ||
f5dff777 | 754 | /* If any of the children of a union are vectors, flag the |
ad068eab UW |
755 | union as a vector also. This allows e.g. a union of two |
756 | vector types to show up automatically in "info vector". */ | |
757 | if (TYPE_VECTOR (field_type)) | |
758 | TYPE_VECTOR (type) = 1; | |
759 | } | |
f5dff777 DJ |
760 | return type; |
761 | } | |
762 | ||
763 | case TDESC_TYPE_FLAGS: | |
764 | { | |
f5dff777 DJ |
765 | struct tdesc_type_flag *f; |
766 | int ix; | |
767 | ||
3494b66d | 768 | type = arch_flags_type (gdbarch, tdesc_type->name, |
f5dff777 DJ |
769 | tdesc_type->u.f.size); |
770 | for (ix = 0; | |
771 | VEC_iterate (tdesc_type_flag, tdesc_type->u.f.flags, ix, f); | |
772 | ix++) | |
773 | /* Note that contrary to the function name, this call will | |
774 | just set the properties of an already-allocated | |
775 | field. */ | |
a6f5ef51 L |
776 | append_flags_type_flag (type, f->start, |
777 | *f->name ? f->name : NULL); | |
ad068eab UW |
778 | |
779 | return type; | |
780 | } | |
781 | } | |
782 | ||
783 | internal_error (__FILE__, __LINE__, | |
784 | "Type \"%s\" has an unknown kind %d", | |
785 | tdesc_type->name, tdesc_type->kind); | |
786 | } | |
123dc839 DJ |
787 | \f |
788 | ||
789 | /* Support for registers from target descriptions. */ | |
790 | ||
791 | /* Construct the per-gdbarch data. */ | |
792 | ||
793 | static void * | |
794 | tdesc_data_init (struct obstack *obstack) | |
795 | { | |
796 | struct tdesc_arch_data *data; | |
797 | ||
798 | data = OBSTACK_ZALLOC (obstack, struct tdesc_arch_data); | |
799 | return data; | |
800 | } | |
801 | ||
802 | /* Similar, but for the temporary copy used during architecture | |
803 | initialization. */ | |
804 | ||
805 | struct tdesc_arch_data * | |
806 | tdesc_data_alloc (void) | |
807 | { | |
41bf6aca | 808 | return XCNEW (struct tdesc_arch_data); |
123dc839 DJ |
809 | } |
810 | ||
811 | /* Free something allocated by tdesc_data_alloc, if it is not going | |
812 | to be used (for instance if it was unsuitable for the | |
813 | architecture). */ | |
814 | ||
815 | void | |
816 | tdesc_data_cleanup (void *data_untyped) | |
817 | { | |
818 | struct tdesc_arch_data *data = data_untyped; | |
819 | ||
ad068eab | 820 | VEC_free (tdesc_arch_reg, data->arch_regs); |
123dc839 DJ |
821 | xfree (data); |
822 | } | |
823 | ||
824 | /* Search FEATURE for a register named NAME. */ | |
825 | ||
7cc46491 DJ |
826 | static struct tdesc_reg * |
827 | tdesc_find_register_early (const struct tdesc_feature *feature, | |
828 | const char *name) | |
123dc839 DJ |
829 | { |
830 | int ixr; | |
831 | struct tdesc_reg *reg; | |
832 | ||
833 | for (ixr = 0; | |
834 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
835 | ixr++) | |
836 | if (strcasecmp (reg->name, name) == 0) | |
7cc46491 | 837 | return reg; |
123dc839 | 838 | |
7cc46491 DJ |
839 | return NULL; |
840 | } | |
841 | ||
842 | /* Search FEATURE for a register named NAME. Assign REGNO to it. */ | |
843 | ||
844 | int | |
845 | tdesc_numbered_register (const struct tdesc_feature *feature, | |
846 | struct tdesc_arch_data *data, | |
847 | int regno, const char *name) | |
848 | { | |
ad068eab | 849 | struct tdesc_arch_reg arch_reg = { 0 }; |
7cc46491 DJ |
850 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); |
851 | ||
852 | if (reg == NULL) | |
853 | return 0; | |
854 | ||
855 | /* Make sure the vector includes a REGNO'th element. */ | |
ad068eab UW |
856 | while (regno >= VEC_length (tdesc_arch_reg, data->arch_regs)) |
857 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &arch_reg); | |
858 | ||
859 | arch_reg.reg = reg; | |
860 | VEC_replace (tdesc_arch_reg, data->arch_regs, regno, &arch_reg); | |
7cc46491 | 861 | return 1; |
123dc839 DJ |
862 | } |
863 | ||
58d6951d DJ |
864 | /* Search FEATURE for a register named NAME, but do not assign a fixed |
865 | register number to it. */ | |
866 | ||
867 | int | |
868 | tdesc_unnumbered_register (const struct tdesc_feature *feature, | |
869 | const char *name) | |
870 | { | |
871 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
872 | ||
873 | if (reg == NULL) | |
874 | return 0; | |
875 | ||
876 | return 1; | |
877 | } | |
878 | ||
7cc46491 DJ |
879 | /* Search FEATURE for a register whose name is in NAMES and assign |
880 | REGNO to it. */ | |
123dc839 DJ |
881 | |
882 | int | |
883 | tdesc_numbered_register_choices (const struct tdesc_feature *feature, | |
884 | struct tdesc_arch_data *data, | |
885 | int regno, const char *const names[]) | |
886 | { | |
887 | int i; | |
888 | ||
889 | for (i = 0; names[i] != NULL; i++) | |
890 | if (tdesc_numbered_register (feature, data, regno, names[i])) | |
891 | return 1; | |
892 | ||
893 | return 0; | |
894 | } | |
895 | ||
7cc46491 DJ |
896 | /* Search FEATURE for a register named NAME, and return its size in |
897 | bits. The register must exist. */ | |
898 | ||
899 | int | |
900 | tdesc_register_size (const struct tdesc_feature *feature, | |
901 | const char *name) | |
902 | { | |
903 | struct tdesc_reg *reg = tdesc_find_register_early (feature, name); | |
904 | ||
905 | gdb_assert (reg != NULL); | |
906 | return reg->bitsize; | |
907 | } | |
908 | ||
123dc839 DJ |
909 | /* Look up a register by its GDB internal register number. */ |
910 | ||
ad068eab UW |
911 | static struct tdesc_arch_reg * |
912 | tdesc_find_arch_register (struct gdbarch *gdbarch, int regno) | |
123dc839 | 913 | { |
123dc839 DJ |
914 | struct tdesc_arch_data *data; |
915 | ||
916 | data = gdbarch_data (gdbarch, tdesc_data); | |
ad068eab UW |
917 | if (regno < VEC_length (tdesc_arch_reg, data->arch_regs)) |
918 | return VEC_index (tdesc_arch_reg, data->arch_regs, regno); | |
123dc839 DJ |
919 | else |
920 | return NULL; | |
921 | } | |
922 | ||
ad068eab UW |
923 | static struct tdesc_reg * |
924 | tdesc_find_register (struct gdbarch *gdbarch, int regno) | |
925 | { | |
926 | struct tdesc_arch_reg *reg = tdesc_find_arch_register (gdbarch, regno); | |
5d502164 | 927 | |
ad068eab UW |
928 | return reg? reg->reg : NULL; |
929 | } | |
930 | ||
f8b73d13 DJ |
931 | /* Return the name of register REGNO, from the target description or |
932 | from an architecture-provided pseudo_register_name method. */ | |
933 | ||
934 | const char * | |
d93859e2 | 935 | tdesc_register_name (struct gdbarch *gdbarch, int regno) |
123dc839 | 936 | { |
d93859e2 UW |
937 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); |
938 | int num_regs = gdbarch_num_regs (gdbarch); | |
939 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
123dc839 DJ |
940 | |
941 | if (reg != NULL) | |
942 | return reg->name; | |
943 | ||
944 | if (regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
945 | { | |
d93859e2 | 946 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); |
5d502164 | 947 | |
123dc839 | 948 | gdb_assert (data->pseudo_register_name != NULL); |
d93859e2 | 949 | return data->pseudo_register_name (gdbarch, regno); |
123dc839 DJ |
950 | } |
951 | ||
952 | return ""; | |
953 | } | |
954 | ||
58d6951d | 955 | struct type * |
123dc839 DJ |
956 | tdesc_register_type (struct gdbarch *gdbarch, int regno) |
957 | { | |
ad068eab UW |
958 | struct tdesc_arch_reg *arch_reg = tdesc_find_arch_register (gdbarch, regno); |
959 | struct tdesc_reg *reg = arch_reg? arch_reg->reg : NULL; | |
123dc839 DJ |
960 | int num_regs = gdbarch_num_regs (gdbarch); |
961 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
962 | ||
963 | if (reg == NULL && regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
964 | { | |
965 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 966 | |
123dc839 DJ |
967 | gdb_assert (data->pseudo_register_type != NULL); |
968 | return data->pseudo_register_type (gdbarch, regno); | |
969 | } | |
970 | ||
971 | if (reg == NULL) | |
972 | /* Return "int0_t", since "void" has a misleading size of one. */ | |
df4df182 | 973 | return builtin_type (gdbarch)->builtin_int0; |
123dc839 | 974 | |
ad068eab | 975 | if (arch_reg->type == NULL) |
123dc839 | 976 | { |
ad068eab UW |
977 | /* First check for a predefined or target defined type. */ |
978 | if (reg->tdesc_type) | |
979 | arch_reg->type = tdesc_gdb_type (gdbarch, reg->tdesc_type); | |
980 | ||
981 | /* Next try size-sensitive type shortcuts. */ | |
982 | else if (strcmp (reg->type, "float") == 0) | |
983 | { | |
984 | if (reg->bitsize == gdbarch_float_bit (gdbarch)) | |
985 | arch_reg->type = builtin_type (gdbarch)->builtin_float; | |
986 | else if (reg->bitsize == gdbarch_double_bit (gdbarch)) | |
987 | arch_reg->type = builtin_type (gdbarch)->builtin_double; | |
988 | else if (reg->bitsize == gdbarch_long_double_bit (gdbarch)) | |
989 | arch_reg->type = builtin_type (gdbarch)->builtin_long_double; | |
990 | else | |
991 | { | |
992 | warning (_("Register \"%s\" has an unsupported size (%d bits)"), | |
993 | reg->name, reg->bitsize); | |
994 | arch_reg->type = builtin_type (gdbarch)->builtin_double; | |
995 | } | |
996 | } | |
997 | else if (strcmp (reg->type, "int") == 0) | |
998 | { | |
999 | if (reg->bitsize == gdbarch_long_bit (gdbarch)) | |
1000 | arch_reg->type = builtin_type (gdbarch)->builtin_long; | |
1001 | else if (reg->bitsize == TARGET_CHAR_BIT) | |
1002 | arch_reg->type = builtin_type (gdbarch)->builtin_char; | |
1003 | else if (reg->bitsize == gdbarch_short_bit (gdbarch)) | |
1004 | arch_reg->type = builtin_type (gdbarch)->builtin_short; | |
1005 | else if (reg->bitsize == gdbarch_int_bit (gdbarch)) | |
1006 | arch_reg->type = builtin_type (gdbarch)->builtin_int; | |
1007 | else if (reg->bitsize == gdbarch_long_long_bit (gdbarch)) | |
1008 | arch_reg->type = builtin_type (gdbarch)->builtin_long_long; | |
1009 | else if (reg->bitsize == gdbarch_ptr_bit (gdbarch)) | |
c378eb4e | 1010 | /* A bit desperate by this point... */ |
ad068eab UW |
1011 | arch_reg->type = builtin_type (gdbarch)->builtin_data_ptr; |
1012 | else | |
1013 | { | |
1014 | warning (_("Register \"%s\" has an unsupported size (%d bits)"), | |
1015 | reg->name, reg->bitsize); | |
1016 | arch_reg->type = builtin_type (gdbarch)->builtin_long; | |
1017 | } | |
1018 | } | |
1019 | ||
1020 | if (arch_reg->type == NULL) | |
1021 | internal_error (__FILE__, __LINE__, | |
1022 | "Register \"%s\" has an unknown type \"%s\"", | |
1023 | reg->name, reg->type); | |
123dc839 | 1024 | } |
123dc839 | 1025 | |
ad068eab | 1026 | return arch_reg->type; |
123dc839 DJ |
1027 | } |
1028 | ||
1029 | static int | |
1030 | tdesc_remote_register_number (struct gdbarch *gdbarch, int regno) | |
1031 | { | |
1032 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); | |
1033 | ||
1034 | if (reg != NULL) | |
1035 | return reg->target_regnum; | |
1036 | else | |
1037 | return -1; | |
1038 | } | |
1039 | ||
1040 | /* Check whether REGNUM is a member of REGGROUP. Registers from the | |
1041 | target description may be classified as general, float, or vector. | |
f8b73d13 DJ |
1042 | Unlike a gdbarch register_reggroup_p method, this function will |
1043 | return -1 if it does not know; the caller should handle registers | |
1044 | with no specified group. | |
123dc839 DJ |
1045 | |
1046 | Arbitrary strings (other than "general", "float", and "vector") | |
1047 | from the description are not used; they cause the register to be | |
1048 | displayed in "info all-registers" but excluded from "info | |
1049 | registers" et al. The names of containing features are also not | |
1050 | used. This might be extended to display registers in some more | |
1051 | useful groupings. | |
1052 | ||
1053 | The save-restore flag is also implemented here. */ | |
1054 | ||
f8b73d13 DJ |
1055 | int |
1056 | tdesc_register_in_reggroup_p (struct gdbarch *gdbarch, int regno, | |
1057 | struct reggroup *reggroup) | |
123dc839 | 1058 | { |
123dc839 DJ |
1059 | struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno); |
1060 | ||
123dc839 DJ |
1061 | if (reg != NULL && reg->group != NULL) |
1062 | { | |
1063 | int general_p = 0, float_p = 0, vector_p = 0; | |
1064 | ||
1065 | if (strcmp (reg->group, "general") == 0) | |
1066 | general_p = 1; | |
1067 | else if (strcmp (reg->group, "float") == 0) | |
1068 | float_p = 1; | |
1069 | else if (strcmp (reg->group, "vector") == 0) | |
1070 | vector_p = 1; | |
1071 | ||
1072 | if (reggroup == float_reggroup) | |
1073 | return float_p; | |
1074 | ||
1075 | if (reggroup == vector_reggroup) | |
1076 | return vector_p; | |
1077 | ||
1078 | if (reggroup == general_reggroup) | |
1079 | return general_p; | |
1080 | } | |
1081 | ||
1082 | if (reg != NULL | |
1083 | && (reggroup == save_reggroup || reggroup == restore_reggroup)) | |
1084 | return reg->save_restore; | |
1085 | ||
f8b73d13 DJ |
1086 | return -1; |
1087 | } | |
1088 | ||
1089 | /* Check whether REGNUM is a member of REGGROUP. Registers with no | |
1090 | group specified go to the default reggroup function and are handled | |
1091 | by type. */ | |
1092 | ||
1093 | static int | |
1094 | tdesc_register_reggroup_p (struct gdbarch *gdbarch, int regno, | |
1095 | struct reggroup *reggroup) | |
1096 | { | |
1097 | int num_regs = gdbarch_num_regs (gdbarch); | |
1098 | int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch); | |
1099 | int ret; | |
1100 | ||
1101 | if (regno >= num_regs && regno < num_regs + num_pseudo_regs) | |
1102 | { | |
1103 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); | |
5d502164 | 1104 | |
58d6951d DJ |
1105 | if (data->pseudo_register_reggroup_p != NULL) |
1106 | return data->pseudo_register_reggroup_p (gdbarch, regno, reggroup); | |
1107 | /* Otherwise fall through to the default reggroup_p. */ | |
f8b73d13 DJ |
1108 | } |
1109 | ||
1110 | ret = tdesc_register_in_reggroup_p (gdbarch, regno, reggroup); | |
1111 | if (ret != -1) | |
1112 | return ret; | |
1113 | ||
123dc839 DJ |
1114 | return default_register_reggroup_p (gdbarch, regno, reggroup); |
1115 | } | |
1116 | ||
1117 | /* Record architecture-specific functions to call for pseudo-register | |
1118 | support. */ | |
1119 | ||
1120 | void | |
1121 | set_tdesc_pseudo_register_name (struct gdbarch *gdbarch, | |
1122 | gdbarch_register_name_ftype *pseudo_name) | |
1123 | { | |
1124 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); | |
1125 | ||
1126 | data->pseudo_register_name = pseudo_name; | |
1127 | } | |
1128 | ||
1129 | void | |
1130 | set_tdesc_pseudo_register_type (struct gdbarch *gdbarch, | |
1131 | gdbarch_register_type_ftype *pseudo_type) | |
1132 | { | |
1133 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); | |
1134 | ||
1135 | data->pseudo_register_type = pseudo_type; | |
1136 | } | |
1137 | ||
1138 | void | |
1139 | set_tdesc_pseudo_register_reggroup_p | |
1140 | (struct gdbarch *gdbarch, | |
1141 | gdbarch_register_reggroup_p_ftype *pseudo_reggroup_p) | |
1142 | { | |
1143 | struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data); | |
1144 | ||
1145 | data->pseudo_register_reggroup_p = pseudo_reggroup_p; | |
1146 | } | |
1147 | ||
1148 | /* Update GDBARCH to use the target description for registers. */ | |
1149 | ||
1150 | void | |
1151 | tdesc_use_registers (struct gdbarch *gdbarch, | |
7cc46491 | 1152 | const struct target_desc *target_desc, |
123dc839 DJ |
1153 | struct tdesc_arch_data *early_data) |
1154 | { | |
1155 | int num_regs = gdbarch_num_regs (gdbarch); | |
c6913b7d | 1156 | int ixf, ixr; |
123dc839 DJ |
1157 | struct tdesc_feature *feature; |
1158 | struct tdesc_reg *reg; | |
1159 | struct tdesc_arch_data *data; | |
ad068eab | 1160 | struct tdesc_arch_reg *arch_reg, new_arch_reg = { 0 }; |
123dc839 DJ |
1161 | htab_t reg_hash; |
1162 | ||
123dc839 DJ |
1163 | /* We can't use the description for registers if it doesn't describe |
1164 | any. This function should only be called after validating | |
1165 | registers, so the caller should know that registers are | |
1166 | included. */ | |
1167 | gdb_assert (tdesc_has_registers (target_desc)); | |
1168 | ||
1169 | data = gdbarch_data (gdbarch, tdesc_data); | |
ad068eab | 1170 | data->arch_regs = early_data->arch_regs; |
123dc839 DJ |
1171 | xfree (early_data); |
1172 | ||
1173 | /* Build up a set of all registers, so that we can assign register | |
1174 | numbers where needed. The hash table expands as necessary, so | |
1175 | the initial size is arbitrary. */ | |
1176 | reg_hash = htab_create (37, htab_hash_pointer, htab_eq_pointer, NULL); | |
1177 | for (ixf = 0; | |
1178 | VEC_iterate (tdesc_feature_p, target_desc->features, ixf, feature); | |
1179 | ixf++) | |
1180 | for (ixr = 0; | |
1181 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
1182 | ixr++) | |
1183 | { | |
1184 | void **slot = htab_find_slot (reg_hash, reg, INSERT); | |
1185 | ||
1186 | *slot = reg; | |
1187 | } | |
1188 | ||
1189 | /* Remove any registers which were assigned numbers by the | |
1190 | architecture. */ | |
ad068eab UW |
1191 | for (ixr = 0; |
1192 | VEC_iterate (tdesc_arch_reg, data->arch_regs, ixr, arch_reg); | |
1193 | ixr++) | |
1194 | if (arch_reg->reg) | |
1195 | htab_remove_elt (reg_hash, arch_reg->reg); | |
123dc839 DJ |
1196 | |
1197 | /* Assign numbers to the remaining registers and add them to the | |
f57d151a | 1198 | list of registers. The new numbers are always above gdbarch_num_regs. |
123dc839 DJ |
1199 | Iterate over the features, not the hash table, so that the order |
1200 | matches that in the target description. */ | |
1201 | ||
ad068eab UW |
1202 | gdb_assert (VEC_length (tdesc_arch_reg, data->arch_regs) <= num_regs); |
1203 | while (VEC_length (tdesc_arch_reg, data->arch_regs) < num_regs) | |
1204 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg); | |
123dc839 DJ |
1205 | for (ixf = 0; |
1206 | VEC_iterate (tdesc_feature_p, target_desc->features, ixf, feature); | |
1207 | ixf++) | |
1208 | for (ixr = 0; | |
1209 | VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg); | |
1210 | ixr++) | |
1211 | if (htab_find (reg_hash, reg) != NULL) | |
1212 | { | |
ad068eab UW |
1213 | new_arch_reg.reg = reg; |
1214 | VEC_safe_push (tdesc_arch_reg, data->arch_regs, &new_arch_reg); | |
123dc839 DJ |
1215 | num_regs++; |
1216 | } | |
1217 | ||
1218 | htab_delete (reg_hash); | |
1219 | ||
1220 | /* Update the architecture. */ | |
1221 | set_gdbarch_num_regs (gdbarch, num_regs); | |
1222 | set_gdbarch_register_name (gdbarch, tdesc_register_name); | |
1223 | set_gdbarch_register_type (gdbarch, tdesc_register_type); | |
1224 | set_gdbarch_remote_register_number (gdbarch, | |
1225 | tdesc_remote_register_number); | |
1226 | set_gdbarch_register_reggroup_p (gdbarch, tdesc_register_reggroup_p); | |
1227 | } | |
1228 | \f | |
1229 | ||
424163ea DJ |
1230 | /* Methods for constructing a target description. */ |
1231 | ||
123dc839 DJ |
1232 | static void |
1233 | tdesc_free_reg (struct tdesc_reg *reg) | |
1234 | { | |
1235 | xfree (reg->name); | |
1236 | xfree (reg->type); | |
1237 | xfree (reg->group); | |
1238 | xfree (reg); | |
1239 | } | |
1240 | ||
1241 | void | |
1242 | tdesc_create_reg (struct tdesc_feature *feature, const char *name, | |
1243 | int regnum, int save_restore, const char *group, | |
1244 | int bitsize, const char *type) | |
1245 | { | |
41bf6aca | 1246 | struct tdesc_reg *reg = XCNEW (struct tdesc_reg); |
123dc839 DJ |
1247 | |
1248 | reg->name = xstrdup (name); | |
1249 | reg->target_regnum = regnum; | |
1250 | reg->save_restore = save_restore; | |
1251 | reg->group = group ? xstrdup (group) : NULL; | |
1252 | reg->bitsize = bitsize; | |
c8c12293 | 1253 | reg->type = type ? xstrdup (type) : xstrdup ("<unknown>"); |
123dc839 DJ |
1254 | |
1255 | /* If the register's type is target-defined, look it up now. We may not | |
1256 | have easy access to the containing feature when we want it later. */ | |
ad068eab | 1257 | reg->tdesc_type = tdesc_named_type (feature, reg->type); |
123dc839 DJ |
1258 | |
1259 | VEC_safe_push (tdesc_reg_p, feature->registers, reg); | |
1260 | } | |
1261 | ||
ad068eab UW |
1262 | static void |
1263 | tdesc_free_type (struct tdesc_type *type) | |
1264 | { | |
ad068eab UW |
1265 | switch (type->kind) |
1266 | { | |
f5dff777 | 1267 | case TDESC_TYPE_STRUCT: |
ad068eab UW |
1268 | case TDESC_TYPE_UNION: |
1269 | { | |
1270 | struct tdesc_type_field *f; | |
1271 | int ix; | |
1272 | ||
1273 | for (ix = 0; | |
1274 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix, f); | |
1275 | ix++) | |
1276 | xfree (f->name); | |
1277 | ||
1278 | VEC_free (tdesc_type_field, type->u.u.fields); | |
1279 | } | |
1280 | break; | |
1281 | ||
f5dff777 DJ |
1282 | case TDESC_TYPE_FLAGS: |
1283 | { | |
1284 | struct tdesc_type_flag *f; | |
1285 | int ix; | |
1286 | ||
1287 | for (ix = 0; | |
1288 | VEC_iterate (tdesc_type_flag, type->u.f.flags, ix, f); | |
1289 | ix++) | |
1290 | xfree (f->name); | |
1291 | ||
1292 | VEC_free (tdesc_type_flag, type->u.f.flags); | |
1293 | } | |
1294 | break; | |
1295 | ||
ad068eab UW |
1296 | default: |
1297 | break; | |
1298 | } | |
1299 | ||
1300 | xfree (type->name); | |
1301 | xfree (type); | |
1302 | } | |
1303 | ||
1304 | struct tdesc_type * | |
1305 | tdesc_create_vector (struct tdesc_feature *feature, const char *name, | |
1306 | struct tdesc_type *field_type, int count) | |
1307 | { | |
41bf6aca | 1308 | struct tdesc_type *type = XCNEW (struct tdesc_type); |
ad068eab UW |
1309 | |
1310 | type->name = xstrdup (name); | |
1311 | type->kind = TDESC_TYPE_VECTOR; | |
1312 | type->u.v.type = field_type; | |
1313 | type->u.v.count = count; | |
1314 | ||
1315 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1316 | return type; | |
1317 | } | |
1318 | ||
f5dff777 DJ |
1319 | struct tdesc_type * |
1320 | tdesc_create_struct (struct tdesc_feature *feature, const char *name) | |
1321 | { | |
41bf6aca | 1322 | struct tdesc_type *type = XCNEW (struct tdesc_type); |
f5dff777 DJ |
1323 | |
1324 | type->name = xstrdup (name); | |
1325 | type->kind = TDESC_TYPE_STRUCT; | |
1326 | ||
1327 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1328 | return type; | |
1329 | } | |
1330 | ||
1331 | /* Set the total length of TYPE. Structs which contain bitfields may | |
1332 | omit the reserved bits, so the end of the last field may not | |
1333 | suffice. */ | |
1334 | ||
1335 | void | |
1336 | tdesc_set_struct_size (struct tdesc_type *type, LONGEST size) | |
1337 | { | |
1338 | gdb_assert (type->kind == TDESC_TYPE_STRUCT); | |
1339 | type->u.u.size = size; | |
1340 | } | |
1341 | ||
ad068eab UW |
1342 | struct tdesc_type * |
1343 | tdesc_create_union (struct tdesc_feature *feature, const char *name) | |
1344 | { | |
41bf6aca | 1345 | struct tdesc_type *type = XCNEW (struct tdesc_type); |
ad068eab UW |
1346 | |
1347 | type->name = xstrdup (name); | |
1348 | type->kind = TDESC_TYPE_UNION; | |
1349 | ||
1350 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1351 | return type; | |
1352 | } | |
1353 | ||
f5dff777 DJ |
1354 | struct tdesc_type * |
1355 | tdesc_create_flags (struct tdesc_feature *feature, const char *name, | |
1356 | LONGEST size) | |
1357 | { | |
41bf6aca | 1358 | struct tdesc_type *type = XCNEW (struct tdesc_type); |
f5dff777 DJ |
1359 | |
1360 | type->name = xstrdup (name); | |
1361 | type->kind = TDESC_TYPE_FLAGS; | |
1362 | type->u.f.size = size; | |
1363 | ||
1364 | VEC_safe_push (tdesc_type_p, feature->types, type); | |
1365 | return type; | |
1366 | } | |
1367 | ||
1368 | /* Add a new field. Return a temporary pointer to the field, which | |
1369 | is only valid until the next call to tdesc_add_field (the vector | |
1370 | might be reallocated). */ | |
1371 | ||
ad068eab UW |
1372 | void |
1373 | tdesc_add_field (struct tdesc_type *type, const char *field_name, | |
1374 | struct tdesc_type *field_type) | |
1375 | { | |
1376 | struct tdesc_type_field f = { 0 }; | |
1377 | ||
f5dff777 DJ |
1378 | gdb_assert (type->kind == TDESC_TYPE_UNION |
1379 | || type->kind == TDESC_TYPE_STRUCT); | |
ad068eab UW |
1380 | |
1381 | f.name = xstrdup (field_name); | |
1382 | f.type = field_type; | |
1383 | ||
1384 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); | |
1385 | } | |
1386 | ||
f5dff777 DJ |
1387 | /* Add a new bitfield. */ |
1388 | ||
1389 | void | |
1390 | tdesc_add_bitfield (struct tdesc_type *type, const char *field_name, | |
1391 | int start, int end) | |
1392 | { | |
1393 | struct tdesc_type_field f = { 0 }; | |
1394 | ||
1395 | gdb_assert (type->kind == TDESC_TYPE_STRUCT); | |
1396 | ||
1397 | f.name = xstrdup (field_name); | |
1398 | f.start = start; | |
1399 | f.end = end; | |
1400 | ||
1401 | VEC_safe_push (tdesc_type_field, type->u.u.fields, &f); | |
1402 | } | |
1403 | ||
1404 | void | |
1405 | tdesc_add_flag (struct tdesc_type *type, int start, | |
1406 | const char *flag_name) | |
1407 | { | |
1408 | struct tdesc_type_flag f = { 0 }; | |
1409 | ||
1410 | gdb_assert (type->kind == TDESC_TYPE_FLAGS); | |
1411 | ||
1412 | f.name = xstrdup (flag_name); | |
1413 | f.start = start; | |
1414 | ||
1415 | VEC_safe_push (tdesc_type_flag, type->u.f.flags, &f); | |
1416 | } | |
1417 | ||
123dc839 DJ |
1418 | static void |
1419 | tdesc_free_feature (struct tdesc_feature *feature) | |
1420 | { | |
1421 | struct tdesc_reg *reg; | |
ad068eab | 1422 | struct tdesc_type *type; |
123dc839 DJ |
1423 | int ix; |
1424 | ||
1425 | for (ix = 0; VEC_iterate (tdesc_reg_p, feature->registers, ix, reg); ix++) | |
1426 | tdesc_free_reg (reg); | |
1427 | VEC_free (tdesc_reg_p, feature->registers); | |
1428 | ||
ad068eab UW |
1429 | for (ix = 0; VEC_iterate (tdesc_type_p, feature->types, ix, type); ix++) |
1430 | tdesc_free_type (type); | |
1431 | VEC_free (tdesc_type_p, feature->types); | |
123dc839 DJ |
1432 | |
1433 | xfree (feature->name); | |
1434 | xfree (feature); | |
1435 | } | |
1436 | ||
1437 | struct tdesc_feature * | |
1438 | tdesc_create_feature (struct target_desc *tdesc, const char *name) | |
1439 | { | |
41bf6aca | 1440 | struct tdesc_feature *new_feature = XCNEW (struct tdesc_feature); |
123dc839 DJ |
1441 | |
1442 | new_feature->name = xstrdup (name); | |
1443 | ||
1444 | VEC_safe_push (tdesc_feature_p, tdesc->features, new_feature); | |
1445 | return new_feature; | |
1446 | } | |
1447 | ||
424163ea DJ |
1448 | struct target_desc * |
1449 | allocate_target_description (void) | |
1450 | { | |
41bf6aca | 1451 | return XCNEW (struct target_desc); |
424163ea | 1452 | } |
29709017 | 1453 | |
23181151 DJ |
1454 | static void |
1455 | free_target_description (void *arg) | |
1456 | { | |
1457 | struct target_desc *target_desc = arg; | |
123dc839 | 1458 | struct tdesc_feature *feature; |
23181151 DJ |
1459 | struct property *prop; |
1460 | int ix; | |
1461 | ||
123dc839 DJ |
1462 | for (ix = 0; |
1463 | VEC_iterate (tdesc_feature_p, target_desc->features, ix, feature); | |
1464 | ix++) | |
1465 | tdesc_free_feature (feature); | |
1466 | VEC_free (tdesc_feature_p, target_desc->features); | |
1467 | ||
23181151 DJ |
1468 | for (ix = 0; |
1469 | VEC_iterate (property_s, target_desc->properties, ix, prop); | |
1470 | ix++) | |
1471 | { | |
1472 | xfree (prop->key); | |
1473 | xfree (prop->value); | |
1474 | } | |
1475 | VEC_free (property_s, target_desc->properties); | |
1476 | ||
e35359c5 UW |
1477 | VEC_free (arch_p, target_desc->compatible); |
1478 | ||
23181151 DJ |
1479 | xfree (target_desc); |
1480 | } | |
1481 | ||
1482 | struct cleanup * | |
1483 | make_cleanup_free_target_description (struct target_desc *target_desc) | |
1484 | { | |
1485 | return make_cleanup (free_target_description, target_desc); | |
1486 | } | |
1487 | ||
e35359c5 UW |
1488 | void |
1489 | tdesc_add_compatible (struct target_desc *target_desc, | |
1490 | const struct bfd_arch_info *compatible) | |
1491 | { | |
1492 | const struct bfd_arch_info *compat; | |
1493 | int ix; | |
1494 | ||
1495 | /* If this instance of GDB is compiled without BFD support for the | |
1496 | compatible architecture, simply ignore it -- we would not be able | |
1497 | to handle it anyway. */ | |
1498 | if (compatible == NULL) | |
1499 | return; | |
1500 | ||
1501 | for (ix = 0; VEC_iterate (arch_p, target_desc->compatible, ix, compat); | |
1502 | ix++) | |
1503 | if (compat == compatible) | |
1504 | internal_error (__FILE__, __LINE__, | |
1505 | _("Attempted to add duplicate " | |
1506 | "compatible architecture \"%s\""), | |
1507 | compatible->printable_name); | |
1508 | ||
1509 | VEC_safe_push (arch_p, target_desc->compatible, compatible); | |
1510 | } | |
1511 | ||
29709017 DJ |
1512 | void |
1513 | set_tdesc_property (struct target_desc *target_desc, | |
1514 | const char *key, const char *value) | |
1515 | { | |
1516 | struct property *prop, new_prop; | |
1517 | int ix; | |
1518 | ||
1519 | gdb_assert (key != NULL && value != NULL); | |
1520 | ||
1521 | for (ix = 0; VEC_iterate (property_s, target_desc->properties, ix, prop); | |
1522 | ix++) | |
1523 | if (strcmp (prop->key, key) == 0) | |
1524 | internal_error (__FILE__, __LINE__, | |
1525 | _("Attempted to add duplicate property \"%s\""), key); | |
1526 | ||
23181151 DJ |
1527 | new_prop.key = xstrdup (key); |
1528 | new_prop.value = xstrdup (value); | |
29709017 DJ |
1529 | VEC_safe_push (property_s, target_desc->properties, &new_prop); |
1530 | } | |
23181151 DJ |
1531 | |
1532 | void | |
1533 | set_tdesc_architecture (struct target_desc *target_desc, | |
1534 | const struct bfd_arch_info *arch) | |
1535 | { | |
1536 | target_desc->arch = arch; | |
1537 | } | |
08d16641 PA |
1538 | |
1539 | void | |
1540 | set_tdesc_osabi (struct target_desc *target_desc, enum gdb_osabi osabi) | |
1541 | { | |
1542 | target_desc->osabi = osabi; | |
1543 | } | |
23181151 DJ |
1544 | \f |
1545 | ||
1546 | static struct cmd_list_element *tdesc_set_cmdlist, *tdesc_show_cmdlist; | |
1547 | static struct cmd_list_element *tdesc_unset_cmdlist; | |
1548 | ||
1549 | /* Helper functions for the CLI commands. */ | |
1550 | ||
1551 | static void | |
1552 | set_tdesc_cmd (char *args, int from_tty) | |
1553 | { | |
635c7e8a | 1554 | help_list (tdesc_set_cmdlist, "set tdesc ", all_commands, gdb_stdout); |
23181151 DJ |
1555 | } |
1556 | ||
1557 | static void | |
1558 | show_tdesc_cmd (char *args, int from_tty) | |
1559 | { | |
1560 | cmd_show_list (tdesc_show_cmdlist, from_tty, ""); | |
1561 | } | |
1562 | ||
1563 | static void | |
1564 | unset_tdesc_cmd (char *args, int from_tty) | |
1565 | { | |
635c7e8a | 1566 | help_list (tdesc_unset_cmdlist, "unset tdesc ", all_commands, gdb_stdout); |
23181151 DJ |
1567 | } |
1568 | ||
1569 | static void | |
1570 | set_tdesc_filename_cmd (char *args, int from_tty, | |
1571 | struct cmd_list_element *c) | |
1572 | { | |
6ecd4729 PA |
1573 | xfree (target_description_filename); |
1574 | target_description_filename = xstrdup (tdesc_filename_cmd_string); | |
1575 | ||
23181151 DJ |
1576 | target_clear_description (); |
1577 | target_find_description (); | |
1578 | } | |
1579 | ||
1580 | static void | |
1581 | show_tdesc_filename_cmd (struct ui_file *file, int from_tty, | |
1582 | struct cmd_list_element *c, | |
1583 | const char *value) | |
1584 | { | |
6ecd4729 PA |
1585 | value = target_description_filename; |
1586 | ||
23181151 | 1587 | if (value != NULL && *value != '\0') |
3e43a32a | 1588 | printf_filtered (_("The target description will be read from \"%s\".\n"), |
23181151 DJ |
1589 | value); |
1590 | else | |
3e43a32a MS |
1591 | printf_filtered (_("The target description will be " |
1592 | "read from the target.\n")); | |
23181151 DJ |
1593 | } |
1594 | ||
1595 | static void | |
1596 | unset_tdesc_filename_cmd (char *args, int from_tty) | |
1597 | { | |
1598 | xfree (target_description_filename); | |
1599 | target_description_filename = NULL; | |
1600 | target_clear_description (); | |
1601 | target_find_description (); | |
1602 | } | |
1603 | ||
81adfced DJ |
1604 | static void |
1605 | maint_print_c_tdesc_cmd (char *args, int from_tty) | |
1606 | { | |
1607 | const struct target_desc *tdesc; | |
e35359c5 | 1608 | const struct bfd_arch_info *compatible; |
81adfced DJ |
1609 | const char *filename, *inp; |
1610 | char *function, *outp; | |
1611 | struct property *prop; | |
1612 | struct tdesc_feature *feature; | |
1613 | struct tdesc_reg *reg; | |
ad068eab UW |
1614 | struct tdesc_type *type; |
1615 | struct tdesc_type_field *f; | |
a6f5ef51 | 1616 | struct tdesc_type_flag *flag; |
81adfced | 1617 | int ix, ix2, ix3; |
4e2f8df6 | 1618 | int printed_field_type = 0; |
81adfced DJ |
1619 | |
1620 | /* Use the global target-supplied description, not the current | |
1621 | architecture's. This lets a GDB for one architecture generate C | |
1622 | for another architecture's description, even though the gdbarch | |
1623 | initialization code will reject the new description. */ | |
1624 | tdesc = current_target_desc; | |
1625 | if (tdesc == NULL) | |
1626 | error (_("There is no target description to print.")); | |
1627 | ||
1628 | if (target_description_filename == NULL) | |
1629 | error (_("The current target description did not come from an XML file.")); | |
1630 | ||
1631 | filename = lbasename (target_description_filename); | |
db3b9a10 | 1632 | function = alloca (strlen (filename) + 1); |
81adfced DJ |
1633 | for (inp = filename, outp = function; *inp != '\0'; inp++) |
1634 | if (*inp == '.') | |
1635 | break; | |
1636 | else if (*inp == '-') | |
1637 | *outp++ = '_'; | |
1638 | else | |
1639 | *outp++ = *inp; | |
1640 | *outp = '\0'; | |
1641 | ||
1642 | /* Standard boilerplate. */ | |
c4bfde41 JK |
1643 | printf_unfiltered ("/* THIS FILE IS GENERATED. " |
1644 | "-*- buffer-read-only: t -*- vi" | |
1645 | ":set ro:\n"); | |
1646 | printf_unfiltered (" Original: %s */\n\n", filename); | |
81adfced | 1647 | printf_unfiltered ("#include \"defs.h\"\n"); |
c3f08eb7 | 1648 | printf_unfiltered ("#include \"osabi.h\"\n"); |
81adfced DJ |
1649 | printf_unfiltered ("#include \"target-descriptions.h\"\n"); |
1650 | printf_unfiltered ("\n"); | |
1651 | ||
1652 | printf_unfiltered ("struct target_desc *tdesc_%s;\n", function); | |
1653 | printf_unfiltered ("static void\n"); | |
1654 | printf_unfiltered ("initialize_tdesc_%s (void)\n", function); | |
1655 | printf_unfiltered ("{\n"); | |
1656 | printf_unfiltered | |
1657 | (" struct target_desc *result = allocate_target_description ();\n"); | |
1658 | printf_unfiltered (" struct tdesc_feature *feature;\n"); | |
4e2f8df6 SDJ |
1659 | |
1660 | /* Now we do some "filtering" in order to know which variables to | |
1661 | declare. This is needed because otherwise we would declare unused | |
1662 | variables `field_type' and `type'. */ | |
1663 | for (ix = 0; | |
1664 | VEC_iterate (tdesc_feature_p, tdesc->features, ix, feature); | |
1665 | ix++) | |
1666 | { | |
1667 | int printed_desc_type = 0; | |
1668 | ||
1669 | for (ix2 = 0; | |
1670 | VEC_iterate (tdesc_type_p, feature->types, ix2, type); | |
1671 | ix2++) | |
1672 | { | |
1673 | if (!printed_field_type) | |
1674 | { | |
1675 | printf_unfiltered (" struct tdesc_type *field_type;\n"); | |
1676 | printed_field_type = 1; | |
1677 | } | |
1678 | ||
f92b06da WT |
1679 | if ((type->kind == TDESC_TYPE_UNION |
1680 | || type->kind == TDESC_TYPE_STRUCT) | |
4e2f8df6 SDJ |
1681 | && VEC_length (tdesc_type_field, type->u.u.fields) > 0) |
1682 | { | |
1683 | printf_unfiltered (" struct tdesc_type *type;\n"); | |
1684 | printed_desc_type = 1; | |
1685 | break; | |
1686 | } | |
1687 | } | |
1688 | ||
1689 | if (printed_desc_type) | |
1690 | break; | |
1691 | } | |
1692 | ||
81adfced DJ |
1693 | printf_unfiltered ("\n"); |
1694 | ||
1695 | if (tdesc_architecture (tdesc) != NULL) | |
1696 | { | |
1697 | printf_unfiltered | |
1698 | (" set_tdesc_architecture (result, bfd_scan_arch (\"%s\"));\n", | |
1699 | tdesc_architecture (tdesc)->printable_name); | |
1700 | printf_unfiltered ("\n"); | |
1701 | } | |
1702 | ||
c3f08eb7 L |
1703 | if (tdesc_osabi (tdesc) > GDB_OSABI_UNKNOWN |
1704 | && tdesc_osabi (tdesc) < GDB_OSABI_INVALID) | |
1705 | { | |
1706 | printf_unfiltered | |
1707 | (" set_tdesc_osabi (result, osabi_from_tdesc_string (\"%s\"));\n", | |
1708 | gdbarch_osabi_name (tdesc_osabi (tdesc))); | |
1709 | printf_unfiltered ("\n"); | |
1710 | } | |
1711 | ||
e35359c5 UW |
1712 | for (ix = 0; VEC_iterate (arch_p, tdesc->compatible, ix, compatible); |
1713 | ix++) | |
1714 | { | |
1715 | printf_unfiltered | |
1716 | (" tdesc_add_compatible (result, bfd_scan_arch (\"%s\"));\n", | |
1717 | compatible->printable_name); | |
1718 | } | |
1719 | if (ix) | |
1720 | printf_unfiltered ("\n"); | |
1721 | ||
81adfced DJ |
1722 | for (ix = 0; VEC_iterate (property_s, tdesc->properties, ix, prop); |
1723 | ix++) | |
1724 | { | |
1725 | printf_unfiltered (" set_tdesc_property (result, \"%s\", \"%s\");\n", | |
1726 | prop->key, prop->value); | |
1727 | } | |
1728 | ||
1729 | for (ix = 0; | |
1730 | VEC_iterate (tdesc_feature_p, tdesc->features, ix, feature); | |
1731 | ix++) | |
1732 | { | |
3e43a32a MS |
1733 | printf_unfiltered (" \ |
1734 | feature = tdesc_create_feature (result, \"%s\");\n", | |
81adfced DJ |
1735 | feature->name); |
1736 | ||
1737 | for (ix2 = 0; | |
ad068eab | 1738 | VEC_iterate (tdesc_type_p, feature->types, ix2, type); |
81adfced DJ |
1739 | ix2++) |
1740 | { | |
ad068eab | 1741 | switch (type->kind) |
81adfced | 1742 | { |
ad068eab | 1743 | case TDESC_TYPE_VECTOR: |
81adfced DJ |
1744 | printf_unfiltered |
1745 | (" field_type = tdesc_named_type (feature, \"%s\");\n", | |
ad068eab | 1746 | type->u.v.type->name); |
81adfced | 1747 | printf_unfiltered |
ad068eab UW |
1748 | (" tdesc_create_vector (feature, \"%s\", field_type, %d);\n", |
1749 | type->name, type->u.v.count); | |
81adfced | 1750 | break; |
f92b06da WT |
1751 | case TDESC_TYPE_STRUCT: |
1752 | printf_unfiltered | |
1753 | (" type = tdesc_create_struct (feature, \"%s\");\n", | |
1754 | type->name); | |
1755 | if (type->u.u.size != 0) | |
1756 | printf_unfiltered | |
1757 | (" tdesc_set_struct_size (type, %s);\n", | |
1758 | plongest (type->u.u.size)); | |
1759 | for (ix3 = 0; | |
1760 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix3, f); | |
1761 | ix3++) | |
1762 | { | |
1763 | /* Going first for implicitly sized types, else part handles | |
1764 | bitfields. As reported on xml-tdesc.c implicitly sized types | |
1765 | cannot contain a bitfield. */ | |
57803a3c | 1766 | if (f->type != NULL) |
f92b06da WT |
1767 | { |
1768 | printf_unfiltered | |
1769 | (" field_type = tdesc_named_type (feature, \"%s\");\n", | |
1770 | f->type->name); | |
1771 | printf_unfiltered | |
1772 | (" tdesc_add_field (type, \"%s\", field_type);\n", | |
1773 | f->name); | |
1774 | } | |
1775 | else | |
1776 | printf_unfiltered | |
1777 | (" tdesc_add_bitfield (type, \"%s\", %d, %d);\n", | |
1778 | f->name, f->start, f->end); | |
1779 | } | |
1780 | break; | |
ad068eab | 1781 | case TDESC_TYPE_UNION: |
81adfced | 1782 | printf_unfiltered |
ad068eab UW |
1783 | (" type = tdesc_create_union (feature, \"%s\");\n", |
1784 | type->name); | |
1785 | for (ix3 = 0; | |
1786 | VEC_iterate (tdesc_type_field, type->u.u.fields, ix3, f); | |
1787 | ix3++) | |
81adfced DJ |
1788 | { |
1789 | printf_unfiltered | |
1790 | (" field_type = tdesc_named_type (feature, \"%s\");\n", | |
ad068eab | 1791 | f->type->name); |
81adfced | 1792 | printf_unfiltered |
ad068eab UW |
1793 | (" tdesc_add_field (type, \"%s\", field_type);\n", |
1794 | f->name); | |
81adfced | 1795 | } |
81adfced | 1796 | break; |
a6f5ef51 L |
1797 | case TDESC_TYPE_FLAGS: |
1798 | printf_unfiltered | |
1799 | (" field_type = tdesc_create_flags (feature, \"%s\", %d);\n", | |
1800 | type->name, (int) type->u.f.size); | |
1801 | for (ix3 = 0; | |
1802 | VEC_iterate (tdesc_type_flag, type->u.f.flags, ix3, | |
1803 | flag); | |
1804 | ix3++) | |
1805 | printf_unfiltered | |
1806 | (" tdesc_add_flag (field_type, %d, \"%s\");\n", | |
1807 | flag->start, flag->name); | |
1808 | break; | |
81adfced | 1809 | default: |
ad068eab | 1810 | error (_("C output is not supported type \"%s\"."), type->name); |
81adfced | 1811 | } |
81adfced DJ |
1812 | printf_unfiltered ("\n"); |
1813 | } | |
1814 | ||
1815 | for (ix2 = 0; | |
1816 | VEC_iterate (tdesc_reg_p, feature->registers, ix2, reg); | |
1817 | ix2++) | |
1818 | { | |
1819 | printf_unfiltered (" tdesc_create_reg (feature, \"%s\", %ld, %d, ", | |
1820 | reg->name, reg->target_regnum, reg->save_restore); | |
1821 | if (reg->group) | |
1822 | printf_unfiltered ("\"%s\", ", reg->group); | |
1823 | else | |
1824 | printf_unfiltered ("NULL, "); | |
1825 | printf_unfiltered ("%d, \"%s\");\n", reg->bitsize, reg->type); | |
1826 | } | |
1827 | ||
1828 | printf_unfiltered ("\n"); | |
1829 | } | |
1830 | ||
1831 | printf_unfiltered (" tdesc_%s = result;\n", function); | |
1832 | printf_unfiltered ("}\n"); | |
1833 | } | |
1834 | ||
2c0b251b PA |
1835 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1836 | extern initialize_file_ftype _initialize_target_descriptions; | |
1837 | ||
23181151 DJ |
1838 | void |
1839 | _initialize_target_descriptions (void) | |
1840 | { | |
123dc839 DJ |
1841 | tdesc_data = gdbarch_data_register_pre_init (tdesc_data_init); |
1842 | ||
23181151 DJ |
1843 | add_prefix_cmd ("tdesc", class_maintenance, set_tdesc_cmd, _("\ |
1844 | Set target description specific variables."), | |
1845 | &tdesc_set_cmdlist, "set tdesc ", | |
1846 | 0 /* allow-unknown */, &setlist); | |
1847 | add_prefix_cmd ("tdesc", class_maintenance, show_tdesc_cmd, _("\ | |
1848 | Show target description specific variables."), | |
1849 | &tdesc_show_cmdlist, "show tdesc ", | |
1850 | 0 /* allow-unknown */, &showlist); | |
1851 | add_prefix_cmd ("tdesc", class_maintenance, unset_tdesc_cmd, _("\ | |
1852 | Unset target description specific variables."), | |
1853 | &tdesc_unset_cmdlist, "unset tdesc ", | |
1854 | 0 /* allow-unknown */, &unsetlist); | |
1855 | ||
1856 | add_setshow_filename_cmd ("filename", class_obscure, | |
6ecd4729 | 1857 | &tdesc_filename_cmd_string, |
23181151 DJ |
1858 | _("\ |
1859 | Set the file to read for an XML target description"), _("\ | |
1860 | Show the file to read for an XML target description"), _("\ | |
1861 | When set, GDB will read the target description from a local\n\ | |
1862 | file instead of querying the remote target."), | |
1863 | set_tdesc_filename_cmd, | |
1864 | show_tdesc_filename_cmd, | |
1865 | &tdesc_set_cmdlist, &tdesc_show_cmdlist); | |
1866 | ||
1867 | add_cmd ("filename", class_obscure, unset_tdesc_filename_cmd, _("\ | |
1868 | Unset the file to read for an XML target description. When unset,\n\ | |
1869 | GDB will read the description from the target."), | |
1870 | &tdesc_unset_cmdlist); | |
81adfced DJ |
1871 | |
1872 | add_cmd ("c-tdesc", class_maintenance, maint_print_c_tdesc_cmd, _("\ | |
1873 | Print the current target description as a C source file."), | |
1874 | &maintenanceprintlist); | |
23181151 | 1875 | } |